Ver 4.1 will have Neuvillette and Wriothesley banners [celestia_ge via keikakutori]
According to celestia_ge, version 4.1 will feature both Neuvillette and Wriothesley with one being a permanent banner character.
Google translate
☆ 5PU of ver4.1 is Nuvillet ( ☆ 5 water method) and Rio Sesuri ( ☆ 5 ice long handle).
・ Either of the two characters is a permanent entryPlease use it as a reference because it is a little early information.